Automatic train-stop.



T.A.FLYNN,1R.

AUTOMATIC TRAIN STOP.

A'PFLICATION FILED MAY 3|. ms.

2 SNEETSSHEET 2.

grvuzn-fot Cylinders. l '1'. i V Arfurther object of the'inventlonsis to admit of the operating mechanism be ng operated by a signal setfatcautiomas well as: by a signal set'at danger, orif desired to" To dllnwhom it mayconcern: Be it known that I, THOMAS A. FLY'NN,

Jr., a citizen of the United States, residingat Perth Amboy, in'the county of Middlesex and State of New Jersey,-have inventedcers tain new and useful Improvements In ,Auto--' matic Train-Stops; and I do hereby declare r t a ment the lbl the following to be a full, cIear and eXact description of the invention, such as w1ll.en;- able others skilledv in the art to pertains to make and use thesame.

v ally looked against movementto openlposi tion.

Another obiect of theinvention ad mit of the bleeding of the train l ne when the mechanism is operated to out ig the rivej flow of steam from the boiler-to the admit of theoperating mechanism passin the crossing signal and operable only the 1 danger signal.

apnli ed thereto, 7

, Other objects willtappear andwbe better understoodfrom that embodiment of my invention, of which the following isa specification, reference "being had to the accom-, i panying drawings, forming aip'art thereof,

in which:

boiler, showing the operating gmechanism I I s Fig. 2 1s a sectional view, taken (through the top of the steam boiler. and showing the steam main therein and, the valve for conlso throughvthe boilerfand showing the operat trolling communication between the boiler and the drive cylinder, t 1

Fig.3 is a transverse sectional view,taken ingvmechanism apnlied thereto,

arm and the operating mechanism, f 1

speci ficatibn of Letters Patent. 1

. y 113% Figure lis a detail view ofia steam engine T Ttaken'through ermmndi l. a: 1 :"Fig 'fi is a sectional view, taken through,

Ref lring to the drawing in. detail ithe numeral l idesignat'es 1the'boiler usual steam inain '2, i whichlconneots the} v s eam, dqm ao seeming wa e s, iq which. only. is ShOWnfiIldjl designated 3." The usual train linepip'ejfor Qtheair brakesvstem? 1 is shown at and" is divided at; a point in rear of the-drive cylinder and 'afilvalveicasing and has} a: "rotatable valve; 6 therein, 1 which as, a'

patinteqnprbs, -919, Applicationfllellilley31,19 16 *'seiia1rr.f1'oo', s 19.

ted; block atl -thegouter: end offthe; arm, and.@ 'showing thegalocking' a fest dllven ,I CQInOtIYG-Qr englne, hav ngthe passage-'7 ,,extending diametrically r therethrough and which registers-withihe adjacent connected seetions,of thetrain line,

a longitudinal fseaonni eat; the 61m n bfi h ope n ,5

'perative position to prevent ote i 5 connectsgthe sections of the train line}, i

K whenv theyalve is in the position shown in Fig. .4, and when the 'valveis partially ro vtatedthe said passage gadapted ito regis ter with a Jo'Ql't -.8 formed in Lone side of the A pipesection offlth of bleeding} of the train line; I

i-The'valvefi is provided ith V has connectionvwith' one end of shaped 11111; 12, the other end of shaped: lever being, extendedj to mg element. not shown. designed tobeiprothe" said -s'emaphoref is passage 7. with th the, train line. 1 5 4 I with thetrain linegto admit-pf'fble edingfif; .Fig. 4 is a top plan view 'of thesope'rating I 1': 2- i A dome, 17 f isfcarried the locomotivecasingl eh Thevalveis also iprovided 'with ia, rad l y eac na pa e ;;Wh Qh, w en the valve. 6, is) rotated; to register. the passage 7 V 7 with thefpQrtQS, registers with the rearmostf. .7 j

e "train lineifan d admits); I

, st m wh s T g in has jconnectioniwith one end of anoperatingj lever 11: The oppositeend of th e lever 11" V an angular I the angular I provide and arm '13, which has conneetionfwith' one, end I Theoperatinglever or;arm"14;is carried depending stem-Z15, the upper end of 1 t 5 which i s j onrnaled within therunning boardi', ie on the l9QQmotive'.le ver 114, extends outwardly from, the locomotive boilenand is; .adaptedfto be engagedbyra suitable obstruct titioii 19. j The cl osed by a valve 22, which is carried by a Stem 23 operable throughan angularly disposed sleeve. carried the valve, casing 18. The sleeve. 24: extends into the interior ofthe dome 17, and has its upper end provided with a flange 25, which has connection witha flange-26 carried by the lower end of another angularly disposed sleeve 27, by means ofbolts.28. The upper end of the sleeve 27 extends through the top of the "dome and theupper end of the stem extends throughthe sleeve 27 andhas its terminal extending beyond the upper end of the sleeve and connected to one end of a. lever 29. A-

fcap, 30 is carried by the upperend of the 2 to prevent leakage.

"sleeve 27 and has a passage therein for the ,passage of'the stem and a suitable packing 30 is dispensed withinthe cap and around the adJacent' portlon of the stem and is adapted The: lever '29 is p voted, at a point intermediate its ends, to an angularly disposed su'pportingmember 31,. which is secured to the top of the dome 17, and the lever 29 has end opposite the one which has connection wan the stem 2B,.pivotally connected to Hth'eiupperend of a vertieally'disposed link 40 32. The link 32 is curved outwardly and downwardly from the upper end and extended along the adjacent side of the boiler and I, through an opening in the running board 16.

The lower end of the link is bifurcated and I connected to an arm ofa bell crank lever 33,

' the saidbell crank ,lever being carried by a depending bracket arm 34, carried by the under side of the running board 16. and the other end of the bell crank lever is pivotally connected'to one end ofv a substantially I SEShapedleVer 35, the other end of the lever 35 being pivotallyconnecte'd with the inner end of the operating arm 14.

I In usefwhen the arm ltengages the ob structmg element set by the semaphore, the

' 'arm 14'willbe given "a partial rotation so as to effect registration between the passage 7 in valve 6 and the port 8 in the casing 5,

' an'dbetween the pa'ssage'9 in the valve .on

the train' line, so as to admit of the bleeding of the train line. When the arm 14 is thus operated, the bell crank'leverBii will be simultaneously'operated to effect raising of the link 83 and the rocking of the adjacent end of the-lever 29- upwardly, resulting in port 20 is adapted to be,

the valve stem 23 being moved downwardly and seat the valve so as to close the port 20 and cut off the supply of steam to the cylinder 3. The-valve stem 23 is provided with a series of rack teeth 36, and the supporting element 31 carries a pawl 37 adapted to interchangeably engage the rack teeth when the stem 23 is moved downwardly, so as to lock the valve in closed position. The outer end of the arm 1+1 is provided with an enlarged portion 38, to which is hingedly connected a block 39. When it is desired to 0perate the arm so as to apply the brakes and out off the supply of steam to the cylinders, when the signal is set at caution, the block 39 is moved to the position shown in Fig. 3

,so' as to admit of the obstructing element,

which has been projected to the desiredpositionby the semaphore engagin the block to eifect movement of the arm. l Vhen it is desired to only operate the. arm when the signal is set at danger, the block 39 is folded on the forwardside of theenlarged portion 38 of the arm 14:, so as to lie out of the path of the obstructing element when set at caution. The enlarged portion 38 and the block 39 are provided .with recesses adapted to register when the block .39 is in operative position, and to removably receive a locking plate 10 for holding the block in said operative position, the plate 40 being provided with an eye 4-1 for the insertion of a suitable tool for facilitating the removal of the plate .when it is desired to fold the block on the mally closing the port, of an outwardly proje'cting operating lever, means for connecting the opera ting lever to the valve in the air pipe for operating the valve for opening the port when the valve is operated, means for connectingthe lever to the valve in the steam main for moving the valve to closed position when the lever is operated, a l1011- 'Zontally swinging block hingedly connected to the free end of the operating lever, and means fo holding the block in an extended position, for the purpose specified.

2. In an automatic train stop, the combination with the steam main of a steam engine having a cut ofi' valve therein, a train line pipe carried by the engine and having a discharge port therein, and a valve for nor-' mally closing the port, of an outwardly projecting operating lever pivoted intermedi ete' for mo v' the valyete-clesedz 10 I l" its ends, a link cenneetingthe inner'end of ipositibn when the lever is operated. W V t I the operating lever to the valve in the train In testimony whereof l alfix' myls ignatnre 1 line .pipe for'operatifig;the samefor opening in presence of two Witnesses, j V the port a bell Oran piYotedet'its angle a f link conhecting-the inner end of the opere't- THOMS Y ih a ing lever with the a -djawent end'of the bell l f Witnesses; 1 crank, and a rod connecting the opposite i; I G As. J. GREGG,

end of the bell crank to the valve ofythe NELS H. JQIfNS ON.

Copies of this patent may he obtained for five cents eech, by a ddr el aing 'the Commissioner o t retntg,

Washington, 1?.0." f' I i 

